Overview
The COD Digestion Apparatus is designed for accurate determination of Chemical Oxygen Demand (COD) in wastewater, effluents, and polluted water samples. COD testing is a critical parameter in environmental monitoring, indicating the amount of oxygen required to oxidize organic pollutants present in water.
This unit features a microprocessor-based PID temperature controller with automatic timer control, ensuring precise and consistent digestion conditions. The solid-state aluminum block heater allows simultaneous digestion of multiple samples with uniform heat distribution.
Key Features
Microprocessor-based PID temperature control
Auto time control for a 2-hour digestion cycle
Temperature range: Ambient +5°C to 150°C
Accuracy: ±1°C at 150°C
Solid-state block heating system
Simultaneous digestion of multiple samples
Technical Specifications
Reaction Vessel Diameter: 36 mm
Sample Size: 20 ml
No. of Cavities: 15
Block Dimensions: 200L × 200W × 80H (mm)
Power Supply: 220/230V AC
The unit is supplied complete with air condensers and glass reaction vessels. After digestion (typically 2 hours), samples can be analyzed using a colorimeter or conventional titration method.
The testing procedure aligns with internationally recognized methods such as:
APHA Standard Methods
ISO 6060
The COD Digestion Apparatus ensures reliable, repeatable, and compliant COD analysis, making it ideal for environmental laboratories, wastewater treatment plants, pollution control boards, and industrial QC labs.
